Hartford weather in May 2021

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  • 21°C maximum daytime temperature in May in Hartford21
    21°C max day temperature
  • 8 hours of sunshine per day
  • 12 days with some rainfall in May in Hartford12
    12 days with some rainfall
  • 8°C minimum night-time temperature in May in Hartford8
    8°C min night temperature
  • 15 hours of daylight per day in May in Hartford15
    15 hours of daylight per day
  • No heat & humidity in May in Hartford0
    No heat & humidity
  • 101 mm monthly rainfall in May in Hartford101
    101 mm of monthly rainfall
  • UV (maximum) index 7 (High) in May in Hartford7
    7 (High) UV index
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The May weather guide for Hartford, Connecticut shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

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How hot is it in Hartford in May?

Daytime temperatures usually reach 21°C in Hartford in May, falling to 8°C at night.

How sunny is it in Hartford in May?

There are normally 8 hours of bright sunshine each day in Hartford in May - that's 58% of daylight hours.

Does it rain in Hartford in May?

There are usually 12 days with some rain in Hartford in May and the average monthly rainfall is 101mm.

Hartford sunrise & sunset times for May 2021

Browse the sunrise & sunset times for Hartford in May 2021. Select a month to view Hartford sunrise & sunset times for the next twelve months.


Date Sunrise times Sunset times
Saturday, 1st May 2021 05:47 19:50
Sunday, 16th May 2021 05:30 20:05
Monday, 31st May 2021 05:19 20:19
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Metric (°C / mm)  |  Imperial (°F / inches)

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Where is hot in Connecticut in May for 2021/2022?

Below are average maximum temperatures at popular destinations in Connecticut in May. Select a destination to see more weather parameters.

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